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procedure TForm1.Button1Click(Sender: TObject);
begin
 with Label1 do begin
 color :=clyellow;
 Caption:=Caption + ' ' + Edit1.Text;
end; end;                    

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program Project1;

uses
  Vcl.Forms,
  Unit1 in 'Unit1.pas' {Form1};

{$R *.res}

begin
  Application.Initialize;
  Application.MainFormOnTaskbar := True;
  Application.CreateForm(TForm1, Form1);
  Application.Run;
end.                    

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unit Unit1;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls;

type
  TForm1 = class(TForm)
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
Label1.Color:= clRed;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
Label2.Color:= clYellow;
end;

procedure TForm1.Button3Click(Sender: TObject);
begin
Label3.Color:= clLime;
end;

procedure TForm1.FormCreate(Sender: TObject);
var i: Integer; TempComp: TComponent;
begin
  for i := 1 to 100 do
    begin
     TempComp := FindComponent('Label' + IntToStr(i));
     if TempComp <> nil then
        TLabel(FindComponent('Label'+IntToStr(i))).Transparent:= FALSE;
    end;
Self.Color:= clMoneyGreen;
end;

end.